Shield Arms +5/4 Magazine Extension Mud Fits Glock 19/23

Shield Arms Driven by Innovation Adding five rounds of capacity to your Glock 19 magazine, or four rounds of capacity to your Glock 23 magazine is easy with the Shield Arms +5/+4 Magazine Extension. Machined from billet 6061 aluminum this magazine extension has an Easy Access floor plate that lets you maintain the magazine without removing the extension. The Index Cuts make grasping and removing the magazine effortless. Shield Arms Glock 19/23 Magazine +5/+4 Extension Specifications and Features Shield Arms G19-ME-5-MUD Replaces OEM Base Plate on Factory Full Capacity Magazines Only (No 10 Round State Compliant) Adds Five Rounds to Capacity of Glock 19 Magazine Adds Four Rounds to Capacity of Glock 23 Magazine Magazine Extension with Index Cuts Easy Access Floor Plate +10% Plus Power Spring 6061 Aluminum Type 2 Anodized Mud